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System Blue Not Working

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System Blue Not Working
piepants Offline
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Joined: 2014-09-21
#5
2016-09-27, 03:27
R825 is a pull-up resistor on the USB D+ line. I can't look up the STM32 docs at the moment, but it seems to have something to do with getting the CPU to enter DFU bootloader mode when connected to USB. On the System Blue, as per the documentation you enter DFU mode by holding the BOOT0 and Reset buttons so I believe this resistor is not required, but Egon can probably clarify that.

I'll check mine when I get home from work.
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Messages In This Thread
System Blue Not Working - by tferoli - 2016-09-26, 23:53
RE: System Blue Not Working - by DnH2016 - 2016-09-27, 00:14
RE: System Blue Not Working - by piepants - 2016-09-27, 02:16
RE: System Blue Not Working - by tferoli - 2016-09-27, 02:24
RE: System Blue Not Working - by piepants - 2016-09-27, 03:27
RE: System Blue Not Working - by piepants - 2016-09-27, 06:06
RE: System Blue Not Working - by Tobi - 2016-09-27, 10:21
RE: System Blue Not Working - by tferoli - 2016-09-28, 18:38
RE: System Blue Not Working - by DnH2016 - 2016-09-29, 11:30

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